| 摘要 |
A pumping device (100) or a pump apparatus (200) including a flow control system (122, 220). The flow control system (122, 220) includes a non-return valve (124, 230) and an actuation mechanism (128, 242). The non-return valve (124, 230) have a closing member (126, 232) movable between an open position and a closed position to allow a unidirectional fluid flow and the actuation mechanism (128, 242) have an actuation element (130, 244) movable between an operative position and an inoperative position with respect to the closing member (126, 232). In the operative position, the actuation element (130, 244) applies a counteracting force (CF) to move the closing member (126, 232) to the open position and the actuation element (130, 244) is biased towards the operative position. |
